Win32.HLLW.Autoruner.57520

Technical Information

To ensure autorun and distribution:

Modifies the following registry keys:

[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yuisou' = '%HOMEPATH%\yuisou.exe /K'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yuisou' = '%HOMEPATH%\yuisou.exe /H'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yuisou' = '%HOMEPATH%\yuisou.exe /Y'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yuisou' = '%HOMEPATH%\yuisou.exe /W'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yuisou' = '%HOMEPATH%\yuisou.exe /T'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yuisou' = '%HOMEPATH%\yuisou.exe /e'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yuisou' = '%HOMEPATH%\yuisou.exe /z'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yuisou' = '%HOMEPATH%\yuisou.exe /q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yuisou' = '%HOMEPATH%\yuisou.exe /D'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yuisou' = '%HOMEPATH%\yuisou.exe /i'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yuisou' = '%HOMEPATH%\yuisou.exe /l'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yuisou' = '%HOMEPATH%\yuisou.exe /u'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yuisou' = '%HOMEPATH%\yuisou.exe /V'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yuisou' = '%HOMEPATH%\yuisou.exe /P'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yuisou' = '%HOMEPATH%\yuisou.exe /B'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yuisou' = '%HOMEPATH%\yuisou.exe /n'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yuisou' = '%HOMEPATH%\yuisou.exe /a'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yuisou' = '%HOMEPATH%\yuisou.exe /o'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yuisou' = '%HOMEPATH%\yuisou.exe /G'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yuisou' = '%HOMEPATH%\yuisou.exe /j'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yuisou' = '%HOMEPATH%\yuisou.exe /M'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yuisou' = '%HOMEPATH%\yuisou.exe /c'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yuisou' = '%HOMEPATH%\yuisou.exe /s'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yuisou' = '%HOMEPATH%\yuisou.exe /F'

Creates the following files on removable media:

<Drive name for removable media>:\Documents.lnk
<Drive name for removable media>:\Passwords.lnk
<Drive name for removable media>:\Pictures.lnk
<Drive name for removable media>:\Video.lnk
<Drive name for removable media>:\Music.lnk
<Drive name for removable media>:\HoSp.ico
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\yuisou.exe
<Drive name for removable media>:\New Folder.lnk
<Drive name for removable media>:\yuisoux.exe

Malicious functions:

To complicate detection of its presence in the operating system,

forces the system hide from view:

hidden files

Creates and executes the following:

%HOMEPATH%\yuisou.exe

Modifies file system :

Creates the following files:

%HOMEPATH%\yuisou.exe

Sets the 'hidden' attribute to the following files:

<Drive name for removable media>:\yuisou.exe
<Drive name for removable media>:\yuisoux.exe
<Drive name for removable media>:\HoSp.ico
%HOMEPATH%\yuisou.exe
<Drive name for removable media>:\autorun.inf

Network activity:

Connects to:

'ns#.##ayer1532.com':8000

UDP:

DNS ASK ns#.##ayer1532.com

Miscellaneous:

Searches for the following windows:

ClassName: 'Indicator' WindowName: ''

テクノロジー

用語

トレーニングコースおよび啓蒙プロジェクト

アンチウイルスに関する誤解と噂

Technical Information